Home / 17,687.12-24,408.32-9,729.20

Finding the Fourth Proportional to 17,687.12, 24,408.32 and 9,729.20

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Solution

The fourth proportional to 17,687.12, 24,408.32 and 9,729.20 is: 13,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,687.12 : 24,408.32 = 9,729.20 : x
  2. Step 2: Convert to fraction form
    17,687.12/24,408.32 = 9,729.20/x
  3. Step 3: Cross multiply
    17,687.12x = 24,408.32 × 9,729.20
  4. Step 4: Simplify right side
    17,687.12x = 237,473,426.94
  5. Step 5: Solve for x
    x = 237,473,426.94/17,687.12
  6. Step 6: Final answer
    x = 13,426.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.